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		#16 | 
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			 Connoisseur 
			
			![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Posts: 89 
				Karma: 133654 
				Join Date: Apr 2019 
				
				
				
				Device: Kindle DX Graphite 
				
				
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			r4u5ch, that is the clue from heyman! Go get it  man!
		 
		
	
		
		
		
		
		
		
		
		
		
		
	
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		#17 | 
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			 Connoisseur 
			
			![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Posts: 76 
				Karma: 2000 
				Join Date: Apr 2019 
				
				
				
				Device: sony 
				
				
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			MD5: FBA53A8FDAC531484D8E612F6FE39284 
		
	
		
		
		
		
		
		
		
		
		
		
	
	SHA1: 139FCAAADC8AD0BD363E661FA7079C95A32DBC29 CRC32: 840C8D0F  | 
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		#18 | 
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			 Junior Member 
			
			![]() Posts: 8 
				Karma: 10 
				Join Date: Nov 2010 
				Location: France, Paris 
				
				
				Device: Kindles 3G, 3W, DXG 
				
				
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			Hi, 
		
	
		
		
		
		
		
		
		
		
		
		
	
	I have the same issue. I bought a second hand DXG (B009) with a 3.2.1 firmware version. So, impossible to register the kindle ("Unable to connect at this time..." message) Where did you find the update_restore-os.bin 2.5.8 to downgrade the firmware ? Until now, i can't find it... ![]() Thank you  | 
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		#19 | 
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			 Member 
			
			![]() Posts: 17 
				Karma: 10 
				Join Date: Dec 2009 
				
				
				
				Device: Kindle 2, 3, DX, Voyage, Paperwhite 1 & 3 
				
				
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			Kindle DX Software Updates: 
		
	
		
		
		
		
		
		
		
		
		
		
	
	https://www.amazon.com/gp/help/custo...deId=201504450 Wouldn't this be all anyone needs? I still have a DXG that I use on occasion, and 3G still works (albeit slooowly). I think I installed 2.5.8 plus probably the service update a year or two ago.  | 
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		#20 | 
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			 “Here’s Johnny 
			
			![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Posts: 186 
				Karma: 3863056 
				Join Date: Mar 2014 
				Location: Overlook Hotel Colorado 
				
				
				Device: Kindle DXG - 9.7 iPad - iPhone 12PM - Macbook Pro 
				
				
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			The last time I looked the 3G worked but it was never very fast and even years ago the net portion was painfully slow and was frustrating to use on any website.  
		
	
		
		
		
		
		
		
		
		
		
		
	
	I live outside the whispernet area so I rarely used it much to start with but I still like my DC for reading.  | 
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		#21 | 
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			 Junior Member 
			
			![]() Posts: 8 
				Karma: 10 
				Join Date: Nov 2010 
				Location: France, Paris 
				
				
				Device: Kindles 3G, 3W, DXG 
				
				
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			@dmin7th, thank for the link but it is for upgrade only. 
		
	
		
		
		
		
		
		
		
		
		
		
	
	I'm searching update_restore-os.bin 2.5.8 fille mentioned by Heyman. Otherwise I have another Kindle DXG with an 2.5.8 jailbreaked version. Does anyone know if and how I can make a firmware backup from there and install it on the other?  | 
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		#22 | |
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			 Connoisseur 
			
			![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Posts: 89 
				Karma: 133654 
				Join Date: Apr 2019 
				
				
				
				Device: Kindle DX Graphite 
				
				
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		 Quote: 
	
 https://www.mobileread.com/forums/sh...d.php?t=127969 Good luck!  | 
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		#23 | 
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			 Junior Member 
			
			![]() Posts: 8 
				Karma: 10 
				Join Date: Nov 2010 
				Location: France, Paris 
				
				
				Device: Kindles 3G, 3W, DXG 
				
				
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			Hi, 
		
	
		
		
		
		
		
		
		
		
		
		
		
			Thank you DeKuns, I made a backup of my Kindle DXG 2.5.8 with KindleUpdater. If well understood, I need to put generated rootfs.img and update_restore-os.bin on my second Kindle and launch "update your kindle" to downgrade. Is it so ? Before doing this, is there a utility to make a complete backup of this second kindle (it's jealbreaked, too) just in case ? Last edited by mb93; 11-09-2019 at 09:47 AM.  | 
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		#24 | |
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			 Connoisseur 
			
			![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Posts: 89 
				Karma: 133654 
				Join Date: Apr 2019 
				
				
				
				Device: Kindle DX Graphite 
				
				
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		 Quote: 
	
 For the second question, I never try but KindleUpdater, in principle, will create a backup of the second Kindle as well if you execute it in the second kindle.  | 
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		#25 | 
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			 Junior Member 
			
			![]() Posts: 8 
				Karma: 10 
				Join Date: Nov 2010 
				Location: France, Paris 
				
				
				Device: Kindles 3G, 3W, DXG 
				
				
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			Hi, 
		
	
		
		
		
		
		
		
		
		
		
		
	
	It is not possible to make a backup on the 3.2.1 DXG with kindleupdater as the "update Your kindle" remains disabled... Meanwhile, I found an alternative solution to register without downgrading ! I can now buy Amazon books with my PC and transfert them via USB cable while 3G still doesn't work. The method is a bit tricky and it needs SSH via UsbNetwork hack. I did it in 2 steps: 1/ I had my device registered in my amazon account by Amazon customer service. 2/ with ssh/UsbNetwork , I created the missing "reginfo" file (/var/local/java/prefs) with my new registration data. In copying client.p12 file from 2.5.8 to 3.2.1 (/var/local/java/prefs/certs), suprisilingly, 3G works partially. Now the 3.2.1 gets the titles of my books in the archive folder as well as those of the purchased books! But because the certificate is invalid, I cannot download them. Download remains "spending" indefinitely.  | 
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		#26 | 
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			 Junior Member 
			
			![]() Posts: 8 
				Karma: 10 
				Join Date: Nov 2010 
				Location: France, Paris 
				
				
				Device: Kindles 3G, 3W, DXG 
				
				
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			Hi, 
		
	
		
		
		
		
		
		
		
		
		
		
	
	Epilogue: finally, I managed to restore the image of my 1st kindle in 2.58 on the 2nd which was in 3.2.1. Then I applied the Kindle update to continue using the playstore. But by restoring, the date of my kindle got reset to 1970 and therefore impossible to re-register! To change the date, i had to use UsbNetwork hack and connecting with telnet, the date came back to the normal and the DX got registered automatically! there were a lot of obstacles to overcome but at the end, everything is all right! Many thanks to those helped me.  | 
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		#27 | 
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			 Still reading 
			
			![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Posts: 15,004 
				Karma: 111111255 
				Join Date: Jun 2017 
				Location: Ireland 
				
				
				Device: All 4 Kinds: epub eink, Kindle, android eink, NxtPaper 
				
				
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			I found that just leaving Wireless on for a couple of days and periodically waking the DXG fixed the time. I did manage to Jailbreak, add sleep cover and font enhancement. The USB hack wasn't recognised. 
		
	
		
		
		
		
		
		
		
		
		
		
	
	It had got reset to 1970 by being utterly flat. See the time thread here: https://www.mobileread.com/forums/sh...t=79519&page=3  | 
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| Tags | 
| kindle 1, kindle dx, kindle dx date, kindle dx graphite | 
            
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